{
  "manageEntity": {
    "action": "Create",
    "entityId": "377295192",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":377295192,\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x38f9750a6578821975296a0d2805b6f340a9eccb4a84cfe984b00671ff429128",
    "signature": "0x5720ec84aad52b3caa0d654d18eb6ef742dee94cd2fbb868665c92d7705fbcc83c07ad334f166af9874e574e9efc19dcc337bd00cf6aa7345a1ab8218bbed60a1c",
    "signer": "0x52D9e36016EEaFD98466652F88bE3b7C97D4b408",
    "userId": "135085700"
  }
}